India has abundant surface water resources, however, there are various problems in the management of these resources in their natural state. These problems are mainly due to the direct disposal of sewage, domestic effluents, and industrial effluents, dumping of garbage and interference by cattle, along with various direct and indirect anthropogenic activities, such as washing, bathing, swimming, cultivation of aquatic crops and fish farming. It is of particular significance for the so-called third world countries such as India, with pressing problems of population growth and threatened environments, to utilize the increasing eutrophication and pollution as a way of enhancing fish production through enhancing the euphotic zone of the surface water bodies using suitable reflectors, a method known as ‘Saify's photon impact'.

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